US20140279046A1 - Advertisement providing apparatus and advertisement providing method - Google Patents
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- US20140279046A1 US20140279046A1 US14/176,946 US201414176946A US2014279046A1 US 20140279046 A1 US20140279046 A1 US 20140279046A1 US 201414176946 A US201414176946 A US 201414176946A US 2014279046 A1 US2014279046 A1 US 2014279046A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/01—Social networking
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/02—Marketing; Price estimation or determination; Fundraising
- G06Q30/0241—Advertisements
- G06Q30/0251—Targeted advertisements
- G06Q30/0269—Targeted advertisements based on user profile or attribute
Definitions
- the present invention contains subject matter related to Japanese Patent Application No. 2013-048821 filed in the Japan Patent Office on Mar. 12, 2013, the entire contents of which are incorporated herein by reference.
- the present invention relates to a technique of providing advertisements via a network such as the Internet.
- the former condition is used in the following ways:
- clickers As for the latter condition, it is desirable to target users having a high tendency to click on advertisements (hereinafter, referred to as clickers). This is related to facts that
- a category classification method and a category hierarchical structure are to be decided upon in advance.
- classification methods and various category hierarchical structures include
- categorization work i.e., work for determining which category an advertisement, keyword, website, or the like belong to.
- Manual categorization work is highly accurate but takes time, and thus is not suitable for large-scale categorization.
- automatic categorization by software can handle large-scale categorization but is less accurate than manual categorization.
- the inventor has proposed a method for distributing an advertisement to users who are highly likely to click on advertisements, regardless of categories which the users are curious about or interested in (hereinafter, this method is occasionally referred to as clicker-targeted advertising) (see Japanese Unexamined Patent Application Publication No. 2012-141785 (Japanese Patent No. 5094956)). This method requires neither detailed identification of the curiosity or interest of the users nor categorization work.
- An embodiment of the present invention has been proposed in view of the drawback of the related art and enables efficient targeted advertising that matches the curiosity or interest of users, while keeping a benefit of clicker-targeted advertising of not requiring any categorizing work.
- an advertisement providing apparatus including a first advertisement providing unit, a friend list acquisition unit, a score calculation unit, and a second advertisement providing unit.
- the first advertisement providing unit is configured to provide a first advertisement to a user group including one or a plurality of users.
- the friend list acquisition unit is configured to acquire a friend list of a user who clicked on the first advertisement among the users included in the user group, the friend list including one or a plurality of friend users.
- the score calculation unit is configured to calculate, for each of the friend users included in the friend list, a score in which a click tendency of the friend user is reflected.
- the second advertisement providing unit is configured to provide a second advertisement that is the same as the first advertisement, to a friend user having a score that satisfies a certain condition among the friend users.
- the embodiment of the present invention uses a social graph of each user and a method for predicting a click tendency of the user in combination, thereby enabling efficient targeted advertising that matches the curiosity or interest of users, while keeping a benefit of clicker-targeted advertising of not requiring any categorizing work.
- FIG. 1 is a diagram illustrating an example of a configuration of a system according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating an example of a data structure of a user database (hereinafter, abbreviated as DB).
- FIG. 3 is a diagram illustrating an example of a data structure of a log DB.
- FIG. 4 is a diagram illustrating an example of a data structure of a social graph DB.
- FIG. 5 is a diagram illustrating an example of a data structure of click tendency information.
- FIG. 6 is a diagram illustrating an example of a data structure of target user information.
- FIG. 7 is a sequence diagram illustrating an example of a process according to the embodiment.
- FIG. 1 is a diagram illustrating an example of a configuration of a system according to an embodiment of the present invention.
- a plurality of terminal apparatuses 2 operated by users are connected to a network 1 such as the Internet.
- Examples of the terminal apparatuses 2 include smartphones, mobile phones, and personal computers (PCs).
- the terminal apparatuses 2 each include a browser (or a web browser) 21 generally used.
- the browser 21 has functions such as of requesting, acquiring, and displaying page data written in a language such as Hypertext Markup Language (HTML) and of transmitting form data in accordance with a protocol such as Hypertext Transfer Protocol (HTTP) which is the standard protocol of the Internet.
- HTML Hypertext Markup Language
- HTTP Hypertext Transfer Protocol
- a social networking site (SNS site) 3 that provides a social networking service (SNS), a website 4 that provides general information, and an advertisement providing apparatus 5 that provides advertisements are also connected to the network 1 .
- the advertisement providing apparatus 5 includes functional units such as a click tendency calculation unit 51 , a first-time advertisement-providing-target user determination unit (hereinafter, simply referred to as an initial target user determination unit) 52 , a friend list acquisition unit 53 , a score calculation unit 54 , a subsequent-time advertisement-providing-target user determination unit (hereinafter, simply referred to as a subsequent target user determination unit) 55 , and an advertisement providing unit 56 .
- a combination of the initial target user determination unit 52 and the advertisement providing unit 56 corresponds to a first advertisement providing unit configured to provide a first advertisement to a user group including one or a plurality of users.
- the friend list acquisition unit 53 corresponds to a friend list acquisition unit configured to acquire a friend list of a user who clicked on the first advertisement among the users included in the user group, the friend list including one or a plurality of friend users.
- the score calculation unit 54 corresponds to a score calculation unit configured to calculate, for each of the friend users included in the friend list, a score in which a click tendency of the friend user is reflected.
- a combination of the subsequent target user determination unit 55 and the advertisement providing unit 56 corresponds to a second advertisement providing unit configured to provide a second advertisement that is the same as the first advertisement, to a friend user having a score that satisfies a certain condition among the friend users.
- These functional units are implemented by a computer program executed on hardware resources, such as a central processing unit (CPU), a read only memory (ROM), and a random access memory (RAM), of a computer constituting the advertisement providing apparatus 5 .
- These functional units are not necessarily allocated in a single computer and may be allocated in a distributed manner.
- the advertisement providing apparatus 5 uses and includes DBs such as a user DB 501 , a log DB 502 , a social graph DB 503 , a click tendency information memory unit 504 , and an advertisement-providing-target user information memory unit (hereinafter, simply referred to as a target user information memory unit) 505 .
- DBs such as a user DB 501 , a log DB 502 , a social graph DB 503 , a click tendency information memory unit 504 , and an advertisement-providing-target user information memory unit (hereinafter, simply referred to as a target user information memory unit) 505 .
- These DBs or the like systematically hold predetermined data on a storage medium, such as a hard disk drive (HDD), included in the computer constituting the advertisement providing apparatus 5 .
- HDD hard disk drive
- the user DB 501 , the log DB 502 , the social graph DB 503 , the click tendency information memory unit 504 , and the target user information memory unit 505 are not necessarily allocated in the advertisement providing apparatus 5 and may be allocated in another apparatus.
- FIG. 2 is a diagram illustrating an example of a data structure of the user DB 501 .
- the user DB 501 includes fields of a “user ID” and an “attribute”, for example.
- the “user ID” field contains information identifying a user. Examples of the “user ID” include a member ID with which a user is specifically identified and a browser cookie with which access from the same browser is identified (by writing the browser cookie as cookie information of the browser at the initial access and by referring to the written cookie information at the subsequent accesses).
- the “attribute” field contains various pieces of information, such as the name, address, gender, age, and preference of a user.
- FIG. 3 is a diagram illustrating an example of a data structure of the log DB 502 .
- the log DB 502 includes fields of a “date and time”, a “user ID”, and a “behavior content”, for example.
- the “date and time” field contains information of the occurrence date and time of a logged event.
- the “user ID” field contains information identifying a user.
- the “behavior content” field contains, for example, an advertisement ID of an advertisement viewed by a user, a via-user ID, and clicked-or-not-clicked information.
- the advertisement ID is information identifying an advertisement.
- the via-user ID is, in the case where the advertisement is provided to a user in response to a behavior of a user X who is a friend of the user, information identifying the user X.
- the clicked-or-not-clicked information is information indicating whether or not the user clicked on the advertisement.
- FIG. 4 is a diagram illustrating an example of a data structure of the social graph DB 503 .
- the social graph DB 503 includes fields of a “user ID” and a “friend user ID”, for example.
- the “user ID” field contains information identifying a user.
- the “friend user ID” field contains information identifying one or more friends of the user. Examples of friends include family members, people who attended the same school, people who work at the same office (e.g., colleagues, bosses, and subordinates), people who are related in terms of business (e.g., salespersons and clients), people of the same generation, people having the same hobby, people whom the user hangs out with, people whom the user go shopping with, and people whom the user frequently exchanges emails with.
- users who are friends are linked to one another, and users having close curiosity, interests, and attributes are likely to be friends.
- FIG. 5 is a diagram illustrating an example of a data structure of click tendency information stored in the click tendency information memory unit 504 .
- the click tendency information includes fields of a “user ID”, a “user's own click tendency”, and a “via-user click tendency”, for example.
- the “user ID” field contains information identifying a user.
- the “user's own click tendency” field contains a value representing how likely the user is to click on advertisements. This “user's own click tendency” may be obtained by calculating a click through rate (CTR), which is a ratio of the number of clicked advertisements to the number of provided advertisements, from the user's access log for a certain past period.
- CTR click through rate
- the “via-user click tendency” field contains a value representing how likely the user is to click on advertisements when the user is provided with the advertisements as a friend of another user (or when advertisements are propagated).
- the via-user click tendency is calculated for each of other users (i.e., source users).
- this “via-user click tendency” may be obtained by aggregating log data for each user of interest and calculating a CTR representing a ratio of the number of clicked advertisements to the number of advertisements provided via a source user.
- the “via-user click tendency” may be obtained in the following manner. Let a user A denote the user of interest and a user X denote the source user. Also, let
- FIG. 6 is a diagram illustrating a data structure of advertisement-providing-target user information (hereinafter, simply referred to as target user information) stored in the target user information memory unit 505 .
- the target user information includes fields of an “advertisement ID” and a “user ID”, for example.
- the “advertisement ID” field contains information identifying an advertisement.
- the “user ID” field contains information identifying a user.
- the click tendency calculation unit 51 of the advertisement providing apparatus 5 has a function of calculating, for each user, the “user's own click tendency” and the “via-user click tendency” based on the log data stored in the log DB 502 and the social graph data stored in the social graph DB 503 ; and of storing the obtained results in the click tendency information memory unit 504 .
- the initial target user determination unit 52 has a function of determining users (or a user group) serving as the start of propagation of a certain advertisement; and of storing user IDs of the determined users in the target user information memory unit 505 in association with an advertisement ID of the certain advertisement.
- This user group may be a group of users whose “user's own click tendency” stored in the click tendency information memory unit 504 exceeds a predetermined value or a group of users randomly selected from the user DB 501 .
- the friend list acquisition unit 53 has a function of identifying, using the log data stored in the log DB 502 , users who clicked on a provided advertisement from among the initial target users; and of acquiring, for each of the identified users, a friend list from the social graph data stored in the social graph DB 503 .
- users who clicked on the advertisement are targeted because the advertisement should match the curiosity, interest, or attribute of the users who clicked on it and it is highly probable that the advertisement will match the curiosity, interest, or attribute of friends of the users.
- the friends are highly likely to click on the advertisement, and continuous propagation of the advertisement among the users having the matching curiosity, interest, or attribute is expected.
- the score calculation unit 54 has a function of calculating, for each of users included in the friend list acquired by the friend list acquisition unit 53 , a score in which the click tendency of the user is reflected.
- the click tendency value is multiplied by the “number of friends”. This is because a possibility of the advertisement propagating to a wide range of users increases as the number of friends of the user A increases.
- the click tendency changes depending on via who advertisements have been propagated. For example, suppose that the user A is likely to click on (i.e., has a high click tendency for) advertisements having propagated via a friend X. In this case, the curiosity or interest of the user A and the friend X is close. Suppose that the user A is less likely to click on (i.e., has a low click tendency for) advertisements having propagated via a friend Y. In this case, the curiosity or interest of the user A and the friend Y is not close.
- the above-described methods a) to c) use, for each user included in the friend list, the user's own click tendency which does not take into account via who advertisements have been propagated.
- the user is possibly excluded from the advertisement-providing target.
- the above-described methods d) to h) use the via-user click tendency which is a click tendency determined for each user via who advertisements have been provided.
- the via-user click tendency which is a click tendency determined for each user via who advertisements have been provided.
- the subsequent target user determination unit 55 has a function of determining users each having the score calculated by the score calculation unit 54 that satisfies a predetermined condition, as users (or a user group) to be provided with an advertisement that is the same as the initial advertisement; and of storing user IDs of the determined users in the target user information memory unit 505 in association with an advertisement ID of the advertisement.
- the predetermined condition may be that the score exceeds or is below a predetermined value or in a predetermined range depending on the definition of the score.
- a configuration may be made to avoid duplicated addition when the target user information memory unit 505 already contains data associating the same advertisement and users with each other.
- the advertisement providing unit 56 has a following function.
- an advertisement request i.e., a request for acquiring an advertisement to be put on a site requested by a user
- the advertisement providing unit 56 acquires and provides an advertisement ID associated with the user ID serving as the target user ID, based on the data stored in the target user information memory unit 505 .
- data associating the advertisement and the user with each other may be deleted from the target user information memory unit 505 or may be attached with an invalid flag so as not to be used again.
- deletion or invalidation of the data associating the advertisement and the user with each other may be omitted, or the data may be deleted or invalidated when the advertisement is provided to the user a predetermined number of times.
- the friend list acquisition unit 53 may perform the similar process for each user who clicked on the provided advertisement among the users determined by the subsequent target user determination unit 55 . Based on the acquired friend list, the score calculation unit 54 and the subsequent target user determination unit 55 may perform the similar processes. These processes are repeatedly performed until the advertisement is no longer clicked on by any user.
- Illustration of functional units configured to manage the user DB 501 , the log DB 502 , and the social graph DB 503 is omitted. However, when data managed by each of these DBs is changed, the data is updated at a certain timing.
- FIG. 7 is a sequence diagram illustrating an example of a process performed in the embodiment described above.
- the click tendency calculation unit 51 of the advertisement providing apparatus 5 calculates, for each user, the user's own click tendency and the via-user click tendency at a predetermined timing, based on the log data stored in the log DB 502 and the social graph data stored in the social graph DB 503 .
- the click tendency calculation unit 51 then stores the determined click tendencies in the click tendency information memory unit 504 (step S 101 ).
- the initial target user determination unit 52 of the advertisement providing apparatus 5 determines users (or a user group) serving as the start of propagation of a certain advertisement.
- the initial target user determination unit 52 stores user IDs of the determined users in the target user information memory unit 505 in association with an advertisement ID of the advertisement (step S 102 ).
- a page request is transmitted to the website 4 from the terminal apparatus 2 (step S 103 ).
- the website 4 transmits an advertisement request together with the user ID to the advertisement providing apparatus 5 (step S 104 ).
- the advertisement providing unit 56 of the advertisement providing apparatus 5 acquires an advertisement ID associated with the user ID serving as the target user ID, based on the data stored in the target user information memory unit 505 (step S 105 ).
- the advertisement providing unit 56 then returns advertisement information (e.g., link information to advertisement content, or content data) to the website 4 (step S 106 ).
- the website 4 then returns page information containing the acquired advertisement information to the terminal apparatus 2 (step S 107 ).
- the terminal apparatus 2 displays the page information. As a result, the advertisement is displayed.
- the advertisement providing unit 56 of the advertisement providing apparatus 5 acquires an advertisement ID associated with the user ID serving as the target user ID, based on the data stored in the target user information memory unit 505 (step S 108 ).
- the advertisement providing unit 56 then transmits an advertisement article posting request to the SNS site 3 (step S 109 ).
- the advertisement article is displayed as an advertisement associated with the user.
- the advertisement providing unit 56 may transmit an email containing the advertisement to the user.
- the friend list acquisition unit 53 of the advertisement providing apparatus 5 identifies users who clicked on the advertisement from among the initial target users, by using the log data stored in the log DB 502 .
- the friend list acquisition unit 53 then acquires, for each of the identified users, the friend list of the user based on the social graph data stored in the social graph DB 503 (step S 110 ).
- the score calculation unit 54 of the advertisement providing apparatus 5 calculates, for each of the users included in the friend list acquired by the friend list acquisition unit 53 , a score in which the click tendency of the user is reflected (step S 111 ).
- the subsequent target user determination unit 55 of the advertisement providing apparatus 5 determines users whose scores calculated by the score calculation unit 54 exceed a predetermined value, as users (or a user group) to be provided with the same advertisement as the initial advertisement.
- the subsequent target user determination unit 55 stores user IDs of the determined users in the target user information memory unit 505 in association with an advertisement ID of the advertisement (step S 112 ).
- the advertisement providing unit 56 of the advertisement providing apparatus 5 provides the advertisement to the user of the terminal apparatus 2 through a process similar to the above-described one (steps S 103 to S 109 ).
- the friend list acquisition unit 53 , the score calculation unit 54 , and the subsequent target user determination unit 55 may repeatedly perform the process until the advertisement is no longer clicked on by any user.
- the embodiment uses a social graph of each user and a method for predicting a click tendency of the user in combination, thereby enabling efficient targeted advertising that matches the curiosity or interest of users, while keeping a benefit of clicker-targeted advertising of not requiring any categorizing work.
- the user's curiosity or interest is implicitly obtained based on how an advertisement has propagated on a social graph. This enables an advertisement to be provided more efficiently while keeping the features of the clicker-targeted advertising.
- friend users who have high click-tendency-based scores are provided with the same advertisement.
- the similar process is repeatedly performed for each of the friend users. Because it is guaranteed that friends represented by the social graph have close curiosity, interest, or attribute, propagation of the advertisement is continued for a long period. As a result, a situation in which content of the advertisement does not match the curiosity or interest of users or their environments may be reduced significantly.
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Abstract
Description
- The present invention contains subject matter related to Japanese Patent Application No. 2013-048821 filed in the Japan Patent Office on Mar. 12, 2013, the entire contents of which are incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to a technique of providing advertisements via a network such as the Internet.
- 2. Description of the Related Art
- There is targeted advertising through which advertisements are provided to users who satisfy a certain condition.
- For efficient targeted advertising, two conditions that
-
- content of an advertisement matches, for example, the curiosity, interest, or attribute of users, and
- an advertisement is provided to users who are likely to respond to it are important.
- For example, the former condition is used in the following ways:
- Example 1) An advertisement for automobiles is provided to users interested in automobiles;
- Example 2) A female-targeted advertisement, such as one for jewelry, is provided to female users; and
- Example 3) An advertisement for apartments located in Tokyo is provided to users who live in Tokyo.
- As for the latter condition, it is desirable to target users having a high tendency to click on advertisements (hereinafter, referred to as clickers). This is related to facts that
-
- unoccupied people are likely to click on advertisements,
- busy people do not click on advertisements even if they see advertisements which they are interested in, and
- advertising has no effect in offices where clicking of advertisements is prohibited.
- In order to provide targeted advertising that matches the curiosity, interest, or attribute of users, it is generally essential to identify a category of an advertisement, to identify categories which users are curious about or interested in from their behaviors, and to acquire attribute information of the users in advance. Specifically, work for
-
- identifying a category of an advertisement (e.g., automobile, real estate, or travel),
- identifying a category of each search keyword used by each user,
- identifying a category of content of each website viewed by each user,
- identifying attribution information of each user, such as gender and age, and
- so forth
is generally needed.
- In order to identify a category, a category classification method and a category hierarchical structure are to be decided upon in advance. There are various classification methods and various category hierarchical structures, and examples thereof include
- 1) an automobile classification method based on a criterion of domestic automobiles or foreign automobiles; large-sized, middle-sized, or small-sized automobiles; luxury automobiles or general automobiles; or the like, and
- 2) a user attribute classification method based on the age, occupation, or the like.
- After the category classification method and the category hierarchical structure are decided upon, categorization work (i.e., work for determining which category an advertisement, keyword, website, or the like belong to) is performed. Manual categorization work is highly accurate but takes time, and thus is not suitable for large-scale categorization.
- In contrast, automatic categorization by software can handle large-scale categorization but is less accurate than manual categorization.
- The inventor has proposed a method for distributing an advertisement to users who are highly likely to click on advertisements, regardless of categories which the users are curious about or interested in (hereinafter, this method is occasionally referred to as clicker-targeted advertising) (see Japanese Unexamined Patent Application Publication No. 2012-141785 (Japanese Patent No. 5094956)). This method requires neither detailed identification of the curiosity or interest of the users nor categorization work.
- However, because this method does not take the aforementioned first condition into consideration, contents of advertisements sometimes do not match the curiosity or interest of users or their environments. Consequently, the most desirable users for advertisers are likely to be overlooked.
- An embodiment of the present invention has been proposed in view of the drawback of the related art and enables efficient targeted advertising that matches the curiosity or interest of users, while keeping a benefit of clicker-targeted advertising of not requiring any categorizing work.
- To this end, according to an embodiment of the present invention, there is provided an advertisement providing apparatus including a first advertisement providing unit, a friend list acquisition unit, a score calculation unit, and a second advertisement providing unit. The first advertisement providing unit is configured to provide a first advertisement to a user group including one or a plurality of users. The friend list acquisition unit is configured to acquire a friend list of a user who clicked on the first advertisement among the users included in the user group, the friend list including one or a plurality of friend users. The score calculation unit is configured to calculate, for each of the friend users included in the friend list, a score in which a click tendency of the friend user is reflected. The second advertisement providing unit is configured to provide a second advertisement that is the same as the first advertisement, to a friend user having a score that satisfies a certain condition among the friend users.
- The embodiment of the present invention uses a social graph of each user and a method for predicting a click tendency of the user in combination, thereby enabling efficient targeted advertising that matches the curiosity or interest of users, while keeping a benefit of clicker-targeted advertising of not requiring any categorizing work.
-
FIG. 1 is a diagram illustrating an example of a configuration of a system according to an embodiment of the present invention. -
FIG. 2 is a diagram illustrating an example of a data structure of a user database (hereinafter, abbreviated as DB). -
FIG. 3 is a diagram illustrating an example of a data structure of a log DB. -
FIG. 4 is a diagram illustrating an example of a data structure of a social graph DB. -
FIG. 5 is a diagram illustrating an example of a data structure of click tendency information. -
FIG. 6 is a diagram illustrating an example of a data structure of target user information. -
FIG. 7 is a sequence diagram illustrating an example of a process according to the embodiment. - The following describes a preferred embodiment of the present invention.
-
FIG. 1 is a diagram illustrating an example of a configuration of a system according to an embodiment of the present invention. - Referring to
FIG. 1 , a plurality ofterminal apparatuses 2 operated by users are connected to a network 1 such as the Internet. Examples of theterminal apparatuses 2 include smartphones, mobile phones, and personal computers (PCs). Theterminal apparatuses 2 each include a browser (or a web browser) 21 generally used. Thebrowser 21 has functions such as of requesting, acquiring, and displaying page data written in a language such as Hypertext Markup Language (HTML) and of transmitting form data in accordance with a protocol such as Hypertext Transfer Protocol (HTTP) which is the standard protocol of the Internet. - A social networking site (SNS site) 3 that provides a social networking service (SNS), a
website 4 that provides general information, and anadvertisement providing apparatus 5 that provides advertisements are also connected to the network 1. - The
advertisement providing apparatus 5 includes functional units such as a clicktendency calculation unit 51, a first-time advertisement-providing-target user determination unit (hereinafter, simply referred to as an initial target user determination unit) 52, a friendlist acquisition unit 53, ascore calculation unit 54, a subsequent-time advertisement-providing-target user determination unit (hereinafter, simply referred to as a subsequent target user determination unit) 55, and anadvertisement providing unit 56. A combination of the initial targetuser determination unit 52 and theadvertisement providing unit 56 corresponds to a first advertisement providing unit configured to provide a first advertisement to a user group including one or a plurality of users. The friendlist acquisition unit 53 corresponds to a friend list acquisition unit configured to acquire a friend list of a user who clicked on the first advertisement among the users included in the user group, the friend list including one or a plurality of friend users. Thescore calculation unit 54 corresponds to a score calculation unit configured to calculate, for each of the friend users included in the friend list, a score in which a click tendency of the friend user is reflected. A combination of the subsequent targetuser determination unit 55 and theadvertisement providing unit 56 corresponds to a second advertisement providing unit configured to provide a second advertisement that is the same as the first advertisement, to a friend user having a score that satisfies a certain condition among the friend users. - These functional units are implemented by a computer program executed on hardware resources, such as a central processing unit (CPU), a read only memory (ROM), and a random access memory (RAM), of a computer constituting the
advertisement providing apparatus 5. These functional units are not necessarily allocated in a single computer and may be allocated in a distributed manner. - The
advertisement providing apparatus 5 uses and includes DBs such as auser DB 501, alog DB 502, asocial graph DB 503, a click tendencyinformation memory unit 504, and an advertisement-providing-target user information memory unit (hereinafter, simply referred to as a target user information memory unit) 505. These DBs or the like systematically hold predetermined data on a storage medium, such as a hard disk drive (HDD), included in the computer constituting theadvertisement providing apparatus 5. Note that theuser DB 501, thelog DB 502, thesocial graph DB 503, the click tendencyinformation memory unit 504, and the target userinformation memory unit 505 are not necessarily allocated in theadvertisement providing apparatus 5 and may be allocated in another apparatus. -
FIG. 2 is a diagram illustrating an example of a data structure of theuser DB 501. Theuser DB 501 includes fields of a “user ID” and an “attribute”, for example. The “user ID” field contains information identifying a user. Examples of the “user ID” include a member ID with which a user is specifically identified and a browser cookie with which access from the same browser is identified (by writing the browser cookie as cookie information of the browser at the initial access and by referring to the written cookie information at the subsequent accesses). The “attribute” field contains various pieces of information, such as the name, address, gender, age, and preference of a user. -
FIG. 3 is a diagram illustrating an example of a data structure of thelog DB 502. Thelog DB 502 includes fields of a “date and time”, a “user ID”, and a “behavior content”, for example. The “date and time” field contains information of the occurrence date and time of a logged event. The “user ID” field contains information identifying a user. The “behavior content” field contains, for example, an advertisement ID of an advertisement viewed by a user, a via-user ID, and clicked-or-not-clicked information. The advertisement ID is information identifying an advertisement. The via-user ID is, in the case where the advertisement is provided to a user in response to a behavior of a user X who is a friend of the user, information identifying the user X. The clicked-or-not-clicked information is information indicating whether or not the user clicked on the advertisement. -
FIG. 4 is a diagram illustrating an example of a data structure of thesocial graph DB 503. Thesocial graph DB 503 includes fields of a “user ID” and a “friend user ID”, for example. The “user ID” field contains information identifying a user. The “friend user ID” field contains information identifying one or more friends of the user. Examples of friends include family members, people who attended the same school, people who work at the same office (e.g., colleagues, bosses, and subordinates), people who are related in terms of business (e.g., salespersons and clients), people of the same generation, people having the same hobby, people whom the user hangs out with, people whom the user go shopping with, and people whom the user frequently exchanges emails with. In a social graph, users who are friends are linked to one another, and users having close curiosity, interests, and attributes are likely to be friends. -
FIG. 5 is a diagram illustrating an example of a data structure of click tendency information stored in the click tendencyinformation memory unit 504. The click tendency information includes fields of a “user ID”, a “user's own click tendency”, and a “via-user click tendency”, for example. The “user ID” field contains information identifying a user. The “user's own click tendency” field contains a value representing how likely the user is to click on advertisements. This “user's own click tendency” may be obtained by calculating a click through rate (CTR), which is a ratio of the number of clicked advertisements to the number of provided advertisements, from the user's access log for a certain past period. - The “via-user click tendency” field contains a value representing how likely the user is to click on advertisements when the user is provided with the advertisements as a friend of another user (or when advertisements are propagated). The via-user click tendency is calculated for each of other users (i.e., source users). In the case where there is log data of advertisements propagated via an SNS, this “via-user click tendency” may be obtained by aggregating log data for each user of interest and calculating a CTR representing a ratio of the number of clicked advertisements to the number of advertisements provided via a source user.
- In the case there is no log data of advertisements propagated via an SNS, the “via-user click tendency” may be obtained in the following manner. Let a user A denote the user of interest and a user X denote the source user. Also, let
-
- N1 denote the number of times the user X and the user A clicked on the same advertisement, and
- N2 denote the number of times the user X clicked on but the user A did not clicked on the same advertisement. Then, the user A's click tendency when the user X serves as the source may be obtained through calculation of N1/(N1+N2).
-
FIG. 6 is a diagram illustrating a data structure of advertisement-providing-target user information (hereinafter, simply referred to as target user information) stored in the target userinformation memory unit 505. The target user information includes fields of an “advertisement ID” and a “user ID”, for example. The “advertisement ID” field contains information identifying an advertisement. The “user ID” field contains information identifying a user. - Referring back to
FIG. 1 , the clicktendency calculation unit 51 of theadvertisement providing apparatus 5 has a function of calculating, for each user, the “user's own click tendency” and the “via-user click tendency” based on the log data stored in thelog DB 502 and the social graph data stored in thesocial graph DB 503; and of storing the obtained results in the click tendencyinformation memory unit 504. - The initial target
user determination unit 52 has a function of determining users (or a user group) serving as the start of propagation of a certain advertisement; and of storing user IDs of the determined users in the target userinformation memory unit 505 in association with an advertisement ID of the certain advertisement. This user group may be a group of users whose “user's own click tendency” stored in the click tendencyinformation memory unit 504 exceeds a predetermined value or a group of users randomly selected from theuser DB 501. - The friend
list acquisition unit 53 has a function of identifying, using the log data stored in thelog DB 502, users who clicked on a provided advertisement from among the initial target users; and of acquiring, for each of the identified users, a friend list from the social graph data stored in thesocial graph DB 503. Here, users who clicked on the advertisement are targeted because the advertisement should match the curiosity, interest, or attribute of the users who clicked on it and it is highly probable that the advertisement will match the curiosity, interest, or attribute of friends of the users. As a result, the friends are highly likely to click on the advertisement, and continuous propagation of the advertisement among the users having the matching curiosity, interest, or attribute is expected. - The
score calculation unit 54 has a function of calculating, for each of users included in the friend list acquired by the friendlist acquisition unit 53, a score in which the click tendency of the user is reflected. -
- a) calculating, for each of the users A included in the friend list, a score by multiplying a click tendency value (i.e., the user's own click tendency) of the user A by the number of friends of the user A in the social graph;
- b) calculating, for each of the users A included in the friend list, a score by adding click tendency values (i.e., the user's own click tendencies) of all the friends of the user A in the social graph to the click tendency value (i.e., the user's own click tendency) of the user A;
- c) calculating an overall score from the scores determined by the methods a) and b);
- d) calculating, for each of the users A included in the friend list, a score by multiplying a click tendency value (i.e., the via-user click tendency) of the user A for advertisements provided via the user X serving as the source of the acquired friend list by the number of friends of the user A in the social graph;
- e) calculating, for each of the users A included in the friend list, a score by multiplying the click tendency value (i.e., the via-user click tendency) of the user A for advertisements provided via the user X serving as the source of the acquired friend list by the number of friends of the user A in the social graph having the click tendency values (i.e., the via-user click tendencies) for advertisements provided via the user A larger than or equal to a predetermined value;
- f) calculating, for each of the users A included in the friend list, a score by adding the click tendency values (i.e., the user's own click tendencies) of all the friends of the user A in the social graph to the click tendency value (i.e., the via-user click tendency) of the user A for advertisements provided via the user X serving as the source of the acquired friend list;
- g) calculating, for each of the users A included in the friend list, a score by adding the click tendency values (i.e., the via-user click tendencies) of all the friends of the user A in the social graph for advertisements provided via the user A to the click tendency value (i.e., the via-user click tendency) of the user A for advertisements provided via the user X serving as the source of the acquired friend list; and
- h) calculating an overall score from a plurality of values from among the scores determined by the methods d) to g).
- In the above-described methods a), d), and e), the click tendency value is multiplied by the “number of friends”. This is because a possibility of the advertisement propagating to a wide range of users increases as the number of friends of the user A increases.
- Even for the same user, the click tendency changes depending on via who advertisements have been propagated. For example, suppose that the user A is likely to click on (i.e., has a high click tendency for) advertisements having propagated via a friend X. In this case, the curiosity or interest of the user A and the friend X is close. Suppose that the user A is less likely to click on (i.e., has a low click tendency for) advertisements having propagated via a friend Y. In this case, the curiosity or interest of the user A and the friend Y is not close.
- The above-described methods a) to c) use, for each user included in the friend list, the user's own click tendency which does not take into account via who advertisements have been propagated. Thus, when a user has a high click tendency for advertisements having propagated via a specific user but has a low average click tendency, the user is possibly excluded from the advertisement-providing target.
- In contrast, the above-described methods d) to h) use the via-user click tendency which is a click tendency determined for each user via who advertisements have been provided. Thus, all the users potentially having a high click tendency can be added to the advertisement-providing target.
- The subsequent target
user determination unit 55 has a function of determining users each having the score calculated by thescore calculation unit 54 that satisfies a predetermined condition, as users (or a user group) to be provided with an advertisement that is the same as the initial advertisement; and of storing user IDs of the determined users in the target userinformation memory unit 505 in association with an advertisement ID of the advertisement. For example, the predetermined condition may be that the score exceeds or is below a predetermined value or in a predetermined range depending on the definition of the score. A configuration may be made to avoid duplicated addition when the target userinformation memory unit 505 already contains data associating the same advertisement and users with each other. - The
advertisement providing unit 56 has a following function. In response to an advertisement request (i.e., a request for acquiring an advertisement to be put on a site requested by a user) from thewebsite 4 or when an advertisement article is posted on theSNS site 3 or an advertisement is provided to a user by email or the like, theadvertisement providing unit 56 acquires and provides an advertisement ID associated with the user ID serving as the target user ID, based on the data stored in the target userinformation memory unit 505. After the advertisement is provided, data associating the advertisement and the user with each other may be deleted from the target userinformation memory unit 505 or may be attached with an invalid flag so as not to be used again. When the same advertisement is repeatedly provided to the same user, deletion or invalidation of the data associating the advertisement and the user with each other may be omitted, or the data may be deleted or invalidated when the advertisement is provided to the user a predetermined number of times. - The friend
list acquisition unit 53 may perform the similar process for each user who clicked on the provided advertisement among the users determined by the subsequent targetuser determination unit 55. Based on the acquired friend list, thescore calculation unit 54 and the subsequent targetuser determination unit 55 may perform the similar processes. These processes are repeatedly performed until the advertisement is no longer clicked on by any user. - Illustration of functional units configured to manage the
user DB 501, thelog DB 502, and thesocial graph DB 503 is omitted. However, when data managed by each of these DBs is changed, the data is updated at a certain timing. -
FIG. 7 is a sequence diagram illustrating an example of a process performed in the embodiment described above. - Referring to
FIG. 7 , the clicktendency calculation unit 51 of theadvertisement providing apparatus 5 calculates, for each user, the user's own click tendency and the via-user click tendency at a predetermined timing, based on the log data stored in thelog DB 502 and the social graph data stored in thesocial graph DB 503. The clicktendency calculation unit 51 then stores the determined click tendencies in the click tendency information memory unit 504 (step S101). - Then, the initial target
user determination unit 52 of theadvertisement providing apparatus 5 determines users (or a user group) serving as the start of propagation of a certain advertisement. The initial targetuser determination unit 52 stores user IDs of the determined users in the target userinformation memory unit 505 in association with an advertisement ID of the advertisement (step S102). - Thereafter, a page request is transmitted to the
website 4 from the terminal apparatus 2 (step S103). Thewebsite 4 transmits an advertisement request together with the user ID to the advertisement providing apparatus 5 (step S104). Then, theadvertisement providing unit 56 of theadvertisement providing apparatus 5 acquires an advertisement ID associated with the user ID serving as the target user ID, based on the data stored in the target user information memory unit 505 (step S105). Theadvertisement providing unit 56 then returns advertisement information (e.g., link information to advertisement content, or content data) to the website 4 (step S106). Thewebsite 4 then returns page information containing the acquired advertisement information to the terminal apparatus 2 (step S107). Theterminal apparatus 2 displays the page information. As a result, the advertisement is displayed. - At a certain timing (including a spontaneous timing and a timing at which a request is received from the SNS site 3), the
advertisement providing unit 56 of theadvertisement providing apparatus 5 acquires an advertisement ID associated with the user ID serving as the target user ID, based on the data stored in the target user information memory unit 505 (step S108). Theadvertisement providing unit 56 then transmits an advertisement article posting request to the SNS site 3 (step S109). When the user accesses theSNS site 3 from theterminal apparatus 2, the advertisement article is displayed as an advertisement associated with the user. Alternatively, theadvertisement providing unit 56 may transmit an email containing the advertisement to the user. - Thereafter, the friend
list acquisition unit 53 of theadvertisement providing apparatus 5 identifies users who clicked on the advertisement from among the initial target users, by using the log data stored in thelog DB 502. The friendlist acquisition unit 53 then acquires, for each of the identified users, the friend list of the user based on the social graph data stored in the social graph DB 503 (step S110). - Subsequently, the
score calculation unit 54 of theadvertisement providing apparatus 5 calculates, for each of the users included in the friend list acquired by the friendlist acquisition unit 53, a score in which the click tendency of the user is reflected (step S111). - Then, the subsequent target
user determination unit 55 of theadvertisement providing apparatus 5 determines users whose scores calculated by thescore calculation unit 54 exceed a predetermined value, as users (or a user group) to be provided with the same advertisement as the initial advertisement. The subsequent targetuser determination unit 55 stores user IDs of the determined users in the target userinformation memory unit 505 in association with an advertisement ID of the advertisement (step S112). - Thereafter, the
advertisement providing unit 56 of theadvertisement providing apparatus 5 provides the advertisement to the user of theterminal apparatus 2 through a process similar to the above-described one (steps S103 to S109). - The friend
list acquisition unit 53, thescore calculation unit 54, and the subsequent targetuser determination unit 55 may repeatedly perform the process until the advertisement is no longer clicked on by any user. - As described above, the embodiment uses a social graph of each user and a method for predicting a click tendency of the user in combination, thereby enabling efficient targeted advertising that matches the curiosity or interest of users, while keeping a benefit of clicker-targeted advertising of not requiring any categorizing work. Specifically, the user's curiosity or interest is implicitly obtained based on how an advertisement has propagated on a social graph. This enables an advertisement to be provided more efficiently while keeping the features of the clicker-targeted advertising.
- More specifically, among friends of a user who clicked on an initial advertisement among users provided with the initial advertisement, friend users who have high click-tendency-based scores are provided with the same advertisement. The similar process is repeatedly performed for each of the friend users. Because it is guaranteed that friends represented by the social graph have close curiosity, interest, or attribute, propagation of the advertisement is continued for a long period. As a result, a situation in which content of the advertisement does not match the curiosity or interest of users or their environments may be reduced significantly.
- If propagation of the advertisement ends after a short period, it becomes apparent after a short period that selection of the initial target users is inappropriate or the advertisement is not accepted by general users. This can result in actions such as reselection of the initial target users and replacement of the advertisement.
- The present invention has been described above using the preferable embodiment of the present invention. Although the present invention has been described using specific concrete examples, it is obvious that various modifications and alterations can be made in these concrete examples without departing from a broad gist and scope of the present invention defined by claims. That is, the present invention should not be construed as being limited by details of the concrete examples and the accompanying drawings.
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JP2013048821A JP5762456B2 (en) | 2013-03-12 | 2013-03-12 | Advertisement providing device |
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